发明名称 NONAQUEOUS ELECTROLYTE SECONDARY BATTERY NEGATIVE ELECTRODE, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD FOR MANUFACTURING THEM
摘要 PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery negative electrode capable of suppressing generation of see-through in a negative electrode mixture layer of a negative electrode, a nonaqueous electrolyte secondary battery, and a method for manufacturing the nonaqueous electrolyte secondary battery negative electrode and the nonaqueous electrolyte secondary battery.SOLUTION: In a negative electrode 32 used in a lithium ion secondary battery 1 that is a nonaqueous electrolyte secondary battery, a negative electrode active material comprising natural graphite having a surface coated with amorphous carbon and a thickner comprising CMC are contained in a negative electrode mixture layer, and a ratio between the oil absorption volume in 70% torque of the negative electrode active material and the oil absorption volume in 100% torque is 0.83-1.00.
申请公布号 JP2014032922(A) 申请公布日期 2014.02.20
申请号 JP20120174107 申请日期 2012.08.06
申请人 TOYOTA MOTOR CORP 发明人 TAKAHATA KOJI
分类号 H01M4/133;H01M4/1393;H01M4/36;H01M4/587;H01M4/62 主分类号 H01M4/133
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